Finding the Fourth Proportional to 476,572.13, 657,817.16 and 306,806.25
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Solution
The fourth proportional to 476,572.13, 657,817.16 and 306,806.25 is: 423,487.66
Step by Step Solution
- Step 1: Write the proportion equation
476,572.13 : 657,817.16 = 306,806.25 : x - Step 2: Convert to fraction form
476,572.13/657,817.16 = 306,806.25/x - Step 3: Cross multiply
476,572.13x = 657,817.16 × 306,806.25 - Step 4: Simplify right side
476,572.13x = 201,822,414,511.22 - Step 5: Solve for x
x = 201,822,414,511.22/476,572.13 - Step 6: Final answer
x = 423,487.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.